I'm using the navbar, and it automatically fits "n" elements to span 100% of the viewport, so, if I put 5 elements, each element spans 20%.

But I need a fixed element of 50px width, and the rest of the viewport, to be occupied by the other elements.

So, in my example of 5 ... the fifth element of 50px width, leave "whatever" pixels, and those pixels are divided by 25% for the rest of 4 elements.

How can i do this ? ;)